// 当我在终端输入 node 2.js rock（石头），电脑能随机出一个，并输出我们的对战结果

// console.log(process.argv);

var playerAction = process.argv[process.argv.length-1]
// console.log(playerAction);

// // 电脑随机生成 3个

var random = Math.random()*3
if(random < 1){
    var computerAction = 'rock'

} else if(random >2) {
    var computerAction = 'scissor'
} else {
    var computerAction = 'paper'
}

// bijiao

if(computerAction === playerAction) {
    console.log('平局');
} else if((computerAction === 'rock' && playerAction ==='paper')||(computerAction ==='scissor' && playerAction ==='rock')||(computerAction === 'paper' &&playerAction =='scissor'))
{
    console.log('你赢了');
} else {
    console.log('你输了');
}